Furniture › Bedroom Furniture › Mattresses & Boxsprings › twin to king design extending

Twin 14" Foam Mattress - Signature Design by Ashley Palisades Plush California King Mattress, Copper | 74.5 H x 38 W 14 D in Wayfair M41611

Rest easy. This Euro-top California king mattress has all the essentials for a superior night of sleep at an affordable price. Layers of foam—including cooling copper response memory foam—offer super-soft comfort without sacrificing full-body support.... more

Twin 14" Foam Mattress - Signature Design by Ashley Palisades Plush California King Mattress, Copper | 74.5 H x 38 W 14 D in Wayfair M41611

Rest easy. This Euro-top California king mattress has all the essentials for a superior night of sleep at an affordable price. Layers of foam—including cooling copper response memory foam—offer super-soft comfort without sacrificing full-body support.... more

California King Firm 13.5" Gel/Foam Mattress - Signature Design by Ashley Mt Dana Gel Memory Foam | 79 H x 59 W 13.5 D in Wayfair M62151

Get back to restful nights and refreshed mornings with this firm twin mattress. It's ideal for back and stomach sleepers, who prefer a mattress that doesn't give too much yet still pampers with cradling comfort. Five different levels of high-density... more

King Firm 13.5" Gel/Foam Mattress - Signature Design by Ashley Mt Dana Gel Memory Foam | 79 H x 59 W 13.5 D in Wayfair M62141

Get back to restful nights and refreshed mornings with this firm twin mattress. It's ideal for back and stomach sleepers, who prefer a mattress that doesn't give too much yet still pampers with cradling comfort. Five different levels of high-density... more

King Firm 12" Gel/Foam Mattress - Signature Design by Ashley Gel Memory Foam & Bed Frame | Wayfair PKG009645

Luxury comfort leads to luxury rest. This firm twin mattress and foundation set soothes your body with cottony softness on the mattress cover. Packed inside are layers of support foam and gel memory foam to relieve your pressure points. Rows of power... more

King Firm 10" Memory Foam Mattress - Signature Design by Ashley Chime 10 Inch Medium Firmness Mattress, | 79.5 H x 76 W D in Wayfair M69941

Why worry when you can chime? With the Sierra Sleep Chime Express twin mattress, you have endless possibilities for restful sleep. Soothing memory foam contours to your body, while a thick layer of firm support foam provides plentiful support and... more

Twin Firm 14" Hybrid Mattress - Signature Design by Ashley in Brown | 38 H x W 14 D Wayfair M50771

When it comes to your comfort, discover the luxury of this king hybrid mattress. Two layers of temperature-regulating material keep you at a comfortable temperature all night long. Copper-infused memory foam contributes to the cooling performance and... more

Twin Firm 14" Hybrid Mattress - Signature Design by Ashley in Brown | 38 H x W 14 D Wayfair M50771

When it comes to your comfort, discover the luxury of this king hybrid mattress. Two layers of temperature-regulating material keep you at a comfortable temperature all night long. Copper-infused memory foam contributes to the cooling performance and... more

Full Firm 14" Foam Mattress - Signature Design by Ashley Palisades Twin Mattress, Copper | 74.5 H x 53 W 14 D in Wayfair M41521

Rest easy. This Euro top California king mattress has all the essentials for a superior night of sleep at an affordable price. Layers of foam—including cooling copper response memory foam—offer super-soft comfort without sacrificing full body support.... more

Twin Firm 14" Foam Mattress - Signature Design by Ashley Palisades Mattress, Copper | 74.5 H x 38 W 14 D in Wayfair M41511

Rest easy. This Euro top California king mattress has all the essentials for a superior night of sleep at an affordable price. Layers of foam—including cooling copper response memory foam—offer super-soft comfort without sacrificing full body support.... more

Twin Firm 14" Foam Mattress - Signature Design by Ashley Palisades Mattress, Copper | 83.5 H x 72 W 14 D in Wayfair M41551

Rest easy. This Euro top California king mattress has all the essentials for a superior night of sleep at an affordable price. Layers of foam—including cooling copper response memory foam—offer super-soft comfort without sacrificing full body support.... more

Twin Firm 14" Foam Mattress - Signature Design by Ashley Palisades Mattress, Copper | 79.5 H x 60 W 14 D in Wayfair M41531

Rest easy. This Euro top California king mattress has all the essentials for a superior night of sleep at an affordable price. Layers of foam—including cooling copper response memory foam—offer super-soft comfort without sacrificing full body support.... more

Twin Firm 6" Foam Mattress - Signature Design by Ashley Full | 74.5 H x 38 W 6 D in Wayfair M44511

This budget-friendly king mattress gives you a comfortable night’s sleep at a comfortably affordable price. Its layers of quality foam offer an enhanced level of comfort, while the quilted cover provides a soft surface you're sure to love. Mattress... more

Twin Firm 6" Foam Mattress - Signature Design by Ashley Full | 74.5 H x 38 W 6 D in Wayfair M44511

This budget-friendly king mattress gives you a comfortable night’s sleep at a comfortably affordable price. Its layers of quality foam offer an enhanced level of comfort, while the quilted cover provides a soft surface you're sure to love. Mattress... more

Twin Firm 14" Foam Mattress - Signature Design by Ashley Palisades Mattress, Copper | 74.5 H x 38 W 14 D in Wayfair M41511

Rest easy. This Euro top California king mattress has all the essentials for a superior night of sleep at an affordable price. Layers of foam—including cooling copper response memory foam—offer super-soft comfort without sacrificing full body support.... more

Twin Firm 14" Foam Mattress - Signature Design by Ashley Palisades Mattress, Copper | 79.5 H x 76 W 14 D in Wayfair M41541

Rest easy. This Euro top California king mattress has all the essentials for a superior night of sleep at an affordable price. Layers of foam—including cooling copper response memory foam—offer super-soft comfort without sacrificing full body support.... more

Twin Firm 8" Foam Mattress - Signature Design by Ashley & Bed Frame, Metal | Wayfair PKG010247

Enjoy endless possibilities for restful sleep with this 8-inch king innerspring mattress and foundation set. Feel the support of a truly traditional coil mattress which contours to your body for a traditional feel. Its high-density quilt foam and pad... more

Twin Firm 10" Memory Foam Mattress - Signature Design By Ashley 10 Inch Chime 2.0 | 75 H x 38 W D in Wayfair M42511

Stretch out and let the cares of the day fade away. This ultra-plush king mattress is crafted for modern comfort and convenience, with layers including refreshing green tea foam and response memory foam that support and contour to your body. Even... more

Twin Firm 10" Memory Foam Mattress - Signature Design By Ashley 10 Inch Chime 2.0 | 75 H x 38 W D in Wayfair M42511

Stretch out and let the cares of the day fade away. This ultra-plush king mattress is crafted for modern comfort and convenience, with layers including refreshing green tea foam and response memory foam that support and contour to your body. Even... more

Twin 12" Memory Foam Mattress - Signature Design By Ashley 12 Inch Chime 2.0 Plush | 75 H x 38 W D in Wayfair M42611

Stretch out and let the cares of the day fade away. This ultra-plush king mattress is crafted for modern comfort and convenience, with layers including refreshing green tea foam and response memory foam that support and contour to your body. Even... more

Twin XL Air Mattress - Ebern Designs Lovic 21.5" Mattress, Nylon in Green | 17 H x 9 W 21.5 D Wayfair 75FC9B40ED384D1BB53561589B049969

Get ready to rest and slumbar in comfort with this Incline Adjustable Moss Green Inflatable King Size Mattress. This inflatable travel bed is so much more than an air mattress as it has an adjustable incline head that allows you to not only lay flat to... more

Twin Firm 8" Foam Mattress - Signature Design by Ashley & Bed Frame, Metal | Wayfair PKG010247

Enjoy endless possibilities for restful sleep with this 8-inch king innerspring mattress and foundation set. Feel the support of a truly traditional coil mattress which contours to your body for a traditional feel. Its high-density quilt foam and pad... more

Twin 12" Memory Foam Mattress - Signature Design By Ashley 12 Inch Chime 2.0 Plush | 75 H x 38 W D in Wayfair M42611

Stretch out and let the cares of the day fade away. This ultra-plush king mattress is crafted for modern comfort and convenience, with layers including refreshing green tea foam and response memory foam that support and contour to your body. Even... more

Twin 12" Gel/Foam Mattress - Signature Design by Ashley Plush Gel Memory Foam & Bed Frame | 79 H x 75 W 12 D in Wayfair PKG010215

Luxury comfort leads to luxury rest with this plush king mattress and foundation set. The mattress soothes your body with cottony softness on the cover. Packed inside are layers of support foam and gel memory foam to relieve your pressure points. Rows... more

Twin 12" Gel/Foam Mattress - Signature Design by Ashley Plush Gel Memory Foam & Bed Frame | 79 H x 75 W 12 D in Wayfair PKG010215

Luxury comfort leads to luxury rest with this plush king mattress and foundation set. The mattress soothes your body with cottony softness on the cover. Packed inside are layers of support foam and gel memory foam to relieve your pressure points. Rows... more

Twin Medium 10" Hybrid Mattress - Signature Design by Ashley Dolante | 74.41 H x 37.99 W 10 D in Wayfair M69611

Why worry when you can chime? With the Sierra Sleep Chime hybrid innerspring king mattress, you have endless possibilities for restful sleep. You get the best of the pressure relief of cooling gel-infused memory foam for superior support. Rest assured... more

Twin Firm 10" Gel/Foam Mattress - Signature Design by Ashley Gel Memory Foam & Bed Frame | Wayfair PKG010315

This 10-inch king pillow top innerspring mattress and foundation set combines top comfort and endless possibilities for restful sleep. You'll love the inviting feel of the mattress’ soft top surface with high-density quilt foam. The firming pad and... more

Twin Firm 10" Gel/Foam Mattress - Signature Design by Ashley Gel Memory Foam & Bed Frame | Wayfair PKG010315

This 10-inch king pillow top innerspring mattress and foundation set combines top comfort and endless possibilities for restful sleep. You'll love the inviting feel of the mattress’ soft top surface with high-density quilt foam. The firming pad and... more

Twin Medium 10" Hybrid Mattress - Signature Design by Ashley Dolante | 74.41 H x 37.99 W 10 D in Wayfair M69611

Why worry when you can chime? With the Sierra Sleep Chime hybrid innerspring king mattress, you have endless possibilities for restful sleep. You get the best of the pressure relief of cooling gel-infused memory foam for superior support. Rest assured... more